Condensed Consolidated Statements of Redeemable Convertible Preferred Stock and Stockholders' Deficit (unaudited) - USD ($) $ in Thousands	Total	Redeemable Convertible Preferred Stock	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)
Beginning Balance at Dec. 31, 2021	$ (226,114)				$ (226,114)
Temporary Equity, Beginning Balance, Shares at Dec. 31, 2021		43,318,218
Temporary Equity, Beginning Balance at Dec. 31, 2021		$ 291,876
Beginning Balance, Shares at Dec. 31, 2021			1,674,106
Stock-based compensation expense	8,574			$ 8,574
Exercise of stock options	149			149
Exercise of stock options, Shares			116,299
Stock dividend accrued for Series D preferred stock	(7,383)			(4,865)	(2,518)
Stock dividend accrued for Series D preferred stock, Temporary Equity		$ 7,383
Stock dividend accrued for Series D preferred stock, Shares, Temporary Equity		1,008,596
Redemption value of Series D preferred stock	(3,692)				(3,692)
Redemption value of Series D preferred stock, Temporary Equity		$ 3,692
Redemption value of Series D preferred stock, Shares, Temporary Equity		8,472,752
Exercise of Legacy Akili warrants			8,834
Vesting of common stock warrants	282			282
Conversion of redeemable preferred stock into common stock, Temporary Equity		$ (302,951)
Conversion of redeemable preferred stock into common stock, Shares, Temporary Equity		(52,799,566)
Conversion of redeemable preferred stock into common stock	302,951		$ 5	302,946
Conversion of redeemable preferred stock into common stock, Shares			52,799,566
Issuance of common stock related to Business Combination and PIPE Investment	164,283		$ 3	164,280
Issuance of common stock related to Business Combination and PIPE Investment, Shares			23,367,500
Reverse recapitalization, net of transaction costs (including ($87,512) of deemed dividends related to Earn-Out Shareholders)	(120,386)			(120,386)
Vesting of RSUs			56,619
Other comprehensive income (loss)	(21)					$ (21)
Net loss	(7,964)				(7,964)
Ending Balance at Dec. 31, 2022	110,679		$ 8	350,980	(240,288)	(21)
Ending Balance, Shares at Dec. 31, 2022			78,022,924
Stock-based compensation expense	$ 7,325			7,325
Exercise of stock options, Shares	28,778		28,224
Vesting of RSUs			305,379
Other comprehensive income (loss)	$ 21					$ 21
Net loss	(59,493)				(59,493)
Ending Balance at Dec. 31, 2023	$ 58,532		$ 8	$ 358,305	$ (299,781)
Temporary Equity, Ending Balance, Shares at Dec. 31, 2023	0
Ending Balance, Shares at Dec. 31, 2023			78,356,527